Kars wanted his species to be the most powerful on this planet. Kars wanted the Pillar Men to be able to walk in daylight. He wanted the Pillar Men to be more powerful than they already were. That's why he invented stone masks and looked for the red stone of Aja

However, his idea was immediately rejected by everyone who controlled society, frustrating Kars to an extreme level. He just wanted to help, he wanted to improve the quality of life for everyone in that place, but they just refused? Why?

Kars was so frustrated that he wanted to do away with all the people who doubted him and simply start a new society where he could control individuals and make them obey him. And that's exactly what Kars did

Kars killed every being that existed in the Pillar Men's society, sparing no one but a friend, Esidisi, and you, a random baby they found. Kars planned to raise you to be a great warrior. Therefore, after massacring everyone, Kars took Esidisi and you to a remote place, far from that society that had rejected his ideas

"Look, Kars. The little thing has teeth!" Esidisi comments, opening your little mouth with his fingers to check if you were old enough to have teeth

"How does this thing have teeth but still not be able to walk?" Kars asks frustrated